Returns the number of unconfirmed transactions in the mempool
AI agents call get_unconfirmed_count to retrieve information from MCP Blockchain Query Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries blockchain state (mempool transaction count) without modifying, executing, deleting, or committing any financial transactions. It is purely informational retrieval, consistent with sibling tools like get_24h_tx_count, get_block_count, etc. Misuse poses no significant risk as the output is read-only blockchain metadata.
From the tool's definition Tool name 'get_unconfirmed_count' and description 'Returns the number of unconfirmed transactions in the mempool' indicate a retrieval/query operation with no side effects.
Attacks that exploit this kind of access
Returns the number of unconfirmed transactions in the mempool. It is categorised as a Read tool in the MCP Blockchain Query Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Blockchain Query Server MCP server in PolicyLayer and add a rule for get_unconfirmed_count: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches MCP Blockchain Query Server. Nothing to install.
get_unconfirmed_count is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_unconfirmed_count rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_unconfirmed_count. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_unconfirmed_count is provided by the MCP Blockchain Query Server MCP server (pavel-bc/mcp-blockchain-query). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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